From "Tanghulu" to "Sausage": gold nanosheets-decorated TiO.sub.2 nanocolumns/carbon fiber as SERS substrate

In this work, a novel nanostructure of gold nanosheets (NSs)-decorated TiO.sub.2 nanocolumns (NCs) coated on carbon fiber (Au NSs-TiO.sub.2 NCs/CF) is designed and fabricated. The structure and morphology can be adjusted from Tanghulu-like to sausage-shaped with the final concentration of chloroauri...

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Bibliographic Details
Published in:Journal of materials science 2023-08, Vol.58 (31), p.12624
Main Authors: Wu, Yunjian, Tang, Shiyi, Li, Ruohan, Wang, Yong, Wu, Changyu
Format: Article
Language:English
Subjects:
Methylene blue
Sausages
Online Access:Get full text
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Summary:In this work, a novel nanostructure of gold nanosheets (NSs)-decorated TiO.sub.2 nanocolumns (NCs) coated on carbon fiber (Au NSs-TiO.sub.2 NCs/CF) is designed and fabricated. The structure and morphology can be adjusted from Tanghulu-like to sausage-shaped with the final concentration of chloroauric ions in the reaction solution. Au NSs-TiO.sub.2 NCs/CF have been proven to be an excellent SERS substrate with a high analytical enhancement factor, good uniformity, and great stability. Most importantly, SERS experiments can be carried out on one strand of Au NSs-TiO.sub.2 NCs/CF with the aid of a Raman confocal microscope. These Tanghulu-like and sausage-shaped Au NSs-TiO.sub.2 NCs/CF have great potential in SERS analysis of trace samples.
ISSN:0022-2461
DOI:10.1007/s10853-023-08816-6